Receptacle or package of compressed paper and method of and means for making the same.



R. SEN A0. I RBGEPTAGLEY OR PACKAGE 0? COMPRESSED PAPER AND METHOD OF AND MEANS FOR MAKING THE SAME.

APPLICATION FILED MAY 27. 1911. 1,023,764. Patented Apr. 16, 1912.

Wit sssss I R. SENAG. BBOEPTA'GLE 0R PACKAGE 0? COMPRESSED PAPER AND METHOD OF AND MEANS 3 SHEETS-SHEET 2.

Patented Apr. 16, 1912.

FOR MAKING THE SAME. urmcmmn FILED MAY 27. 1911.

WI 5e s 525 JLJE. J3

R. SBNAC. REGEPTAGLE 0R PACKAGE 0F COMPRESSED PAPER AND METHOD OF AN 1) MEANS Patentd Apr. 16, 1912.

3 SHEETS-SHEET 3.

FOR MAKING THE SAME APPLICATION I'ILED MAY 27. 1911.

f Ramon same, or MADRID, SPAIN.

RECEFTACLE OR PACKAGE OF COMPRESSED PAPER AND METHOD OF AND MEANS FOR MAKING THE SAME.

- Specification of Letters Patent. Application filed May 27, 1911. Serial No. 629,848

rammed Apr. is, rare.

I '0 all whom it may concern Be it known that 'I, RAMON Sumac, a subject of the King of Spain, residing in Madrid, in the Kingdom of Spain, have invented certain new and useful Improvementsm Re-.

cept-acles or Packagesof Compressed laper and 'Methods of and Means for Making 1 the Same, of which the following is a spec!- fication.

This" invention relates to receptacles or packages of compressed paper, and intended to contain solid products, which will avoid the defects of those at present in use.

I The invention also relates to a method of and means for making the receptacles.

For some time past the use of, paper for the manufacture of resistant receptacles has been tried, andin some cases with success.

Small flasks and bottles capable of'wide ap-- plication, are in existence, and also some larger types, principally in Germany; but

these articles are not of paper properly.

speaking, but of cardboard or pasteboard, with ends and hoops of wood, and nails are used to close them. Such receptacles are expensive owing to the materials and cost of manufacture, and they are also heayyfrelatively to their capacity- According to this mvention, paper only is used in theform of strips or bands, which are united by an adhesive and the receptacle is molded and compressed to the required shape and strength in suitable molds.

The invention will be understood from the followingvdescription reference being had to the accompanying drawings, in which- Fi re 1 is an elevation of thereceptacle and its lid; Fig. 2, a sectional elevation of the mold for the receptacle Fig. 3 is a horizontal section on the line A-B of Fig. 2 Fig. 4 is an elevation of-the portion of the I mold,marked CD in Fig. 3, showing the means for connecting the two parts of the moldgFig. 5 is a section on the line E-F of Fig. 4; Fig. 6 is an elevation and plan of the bottom of the mold; Fig. 7 is an elevation, partly in section, of the complete pressing apparatus; Fig. 8 is a section on the line G--H of Fig. 7; Fig. 9 is a section on the line I--J of Fig. 7 showing the pressing chamber and its accessories in plan; and

Figs. 10 and 11 sectional views of the die and the mold for making the lid. l An example of a finished cylindrical receptacle or package and its lid or cover,

made ,from compressed paper in the manner with annular ridges 2 -to simulate hoops,

which give great strength to the receptacle.

. For molding the cylindrical receptacle, a metallic mold 31 is used having a detachable bottom, which can also be of metal or of a wood not aliected by moisture. The con struction of the mold is shown in Figs. 2-6. The mold is formed of two equal parts 3 and 3", which are connected ,at their edges by hooked catches 4 attached to one half of the mold and adapted to engage in the other half. These catches 4 are countersunk in recesses in the side of the mold. as shown in Fig. 5. The bottom of the mold inside has projections or ledges 5 to support the wooden bottom 6. The internal.

walls of the mold are, course, shaped to mold the closing'inembers and the hoops on the receptacle.

7 denotes lugs for lifting be herinafter explained? I The mold for the lid is similar to that for the body of the receptacle. j The bottom of the mold being placed in position in the mold, and the two part mold closed and secured by the catches 4, it is now ready, and themethodof receptacle will now be described.

purposes as will The receptacle i 'formedfrom strips er paper of any suitable nature coated with a making the.

suitable adhesivef and these strips are applied to the inner surface of the mold and superposed and intercrossed until the necessary thickness is obtained according mule strength which it is desired the receptacle shall have. The adhesive is applied by a brush to the strips of paper, the length and width of which are determined at the dispart of the mold to which theyare to be apcretion ofthe workman according .to the .110 w plied, and then these adhesive strips are appliedby hand to the internal walls and bottom of the mold. After/the receptacle is molded, it must be compressed to give it the necessary strength and insure'the correct formation and rigidity of the closing members. Simultaneously during 4 this pressing the greater part of the water in the adhesive is expressed. After the pressing, which is effected in a press and in the manner hereinafter described, the receptacles are dried insuitable drying chambers.-

The pressing apparatus illustrated in Figs. 7 to 9 comprises a'strong metallic vessel or chamber 8, bolted to the pedestal or platform 9; During the pressing operation the mold with the receptacle in its in terior is introduced into this. chamber 8. The chamber Syhas its internal walls channeled as at 8, corresponding with othergrooves in the base, to permit the escape of air when the mold is lowered into the chamber, which it fits very closely. The pressing chamber 8 at the top is enlarged to form a seat for its lid 10. The inner periphery of the top of the said chamber is provided with an interrupted thread 11, adapted to engage with a corresponding thread on the lid 10, so that the lid can be secured in position by giving it a fraction of a turn. Connected with this lid is a vessel 12, of rubber or other suitable material capable of expanding when air, water, steam, or other fluid under pressure, is injected into. its interior, and the elastic vessel is the medium by which pressure is applied to mold and compress the receptacle.

13 denotes a metallic core between which and the rubber vessel an annular space 14 is left into which the pressure fluid is *introduced.

The lid 10 is suspended from a cross-bar 15 by a bolt 16 which; permits it to turn, and the crossbar at its ends is adapted to embrace and slide on guides 17 on the.

columns 18. The crossbar 15 is sup orted by a cable 19, which passes over gm e pulleys 20 and 21, one of which 20 is located vertically over the point of suspension, and

.the cable is wound up on a drum operated by worm gearing 22 and crank handle 23. To facilitate the raising and lowering operation, an additional cable 24 is provided which supports the counter-weight 25. The cross-bar 15 also carries, at points equidistant from the center, tongs 26, suspended by chains and in a horizontal plane. The tongs are adapted tohold the mold by pairs of lugs 7 formed in the edges of the mold, which lugs fit into recesses 27 of corresponding shape in the walls of the pressing chamber when the mold is in position therein.

When the lid 10 has been applied and the chamber 8 is hermetically and securely closed, the cock 28 is opened, which puts the interior of the elastic vessel 12 into communication with the pressure fluid. The elastic vessel is expanded by the pressure fluid to the form of the mold and strongly presses the molded article on the inner walls and bottom of the mold (which is protected by the external resistant chamber 8), thus insuring an intimate connection of the paper strips and the correct formation and rigidity of the receptacle and its closing members. At the same time the greater part of the liquid in the adhesive is expressed.

The sequence of operations in using the apparatus is as follows :The -lid 10 with the elastic "essel 12 is raised to such a height as to permit the mold 3 and the receptacle in its interior to be placed below it and centered therewith. The lid and elastic vessel are now lowered so as to introduce the elastic vessel into the mold, and enable the tongs 26 to take hold of the lugs 7 of the latter. The lid, elastic vessel and mold are then lowered until themold rests on the bottom of the pressing chamber 8, whereupon the tongs are released from the lugs 7, and by giving them a half turn they remain hanging outside the pressing chamber 8. The lid 10 is then fully lowered until its thread 11 contacts with the thread of the chamber 8, when by giving the lid a part of a turn the respective threads are engaged and the closure effected. The elastic-vessel 12 is then put into communication with the pressure fluid by opening the cock 28, the pressure being ascertained by a manometer 29. On the completion of. the pressing operation, the cock 28 is closed, and the operations are repeated in inverse order. 7

The compression of the lid, molded in a metal mold with a wooden bottom identical in arran ement with'that for the body of the receptacl efis also effected at a single operation by pressing or stamping. For this purpose the mold shown'in section in Fig. 10 is inserted into a very strong ring 30 of iron, steel or other metal, cut through its diameter and provided with a closingmeans operated by an eccentric lever. In the internal periphery of this rin are arranged pieces 31- the section of which is straight in the part in contact with the cylindrical part of the molded lid and conical inward. On these pieces is supported a conical die 32 with projecting flanges and the whole is compressed by a plate actuated by a hydraulic press, or by a screw, lever or other suitable means. ing, the die bears on the pieces and. these compress the molded lid on the mold supported in the metallic ring, and the die is heated so that on com letlng its stroke the cylindrical surface of the lid and its top are compressed; On the completion of the press On commencing the press-- ing operation the ring is opened, and the die and the pressed lid removed, and the latter taken to the drying chamber.

No claim is herein made to the means for forming the lidor cover for the receptacle, but the same is shown and described for the purpose of making a complete disclosure, said snbject-nm-tter being reserved for a separate application.

I declare that what I claim is 1. A method of making receptacles or packages of compressed paper, which consists in applying strips of paper coated with an adhesive to the interior of a mold until the desired thickness is obtained, and molding and compressing the article in the mold by fluid pressure acting through the intermediary of an elastic pressing member.

2. In a method of making receptacles. of"

compressed paper by pressing and molding strips of adhesive paper in a mold, the use of an elastic pressing member which is inserted into said mold and is formed of a material capable of being expanded by the pressure fluid scans to adapt itself to the internal configuration of the mold and t'ansmit the pressure to the article to be molded.

A mold for producingreceptacles or packages of compressed paper, which 'mold is made in two parts provided with countersunk hooked. catches for securing the mold halves together, and also provided with a double bottom supported on projections near the bottom of the mold, and with two-part lugs for lifting purposes.

4. An apparatus for compressin and molding receptacles or packages 0 compressed paper, comprising a pressing chammolding receptacles or packages of compressed paper, comprising a pressing chamber shaped to-receive the mold, air-escape grooves on, the internal walls-of said chamber, a lid to close the pressing chamber. interrupted threads on the engaging surfaces of the lid and chamber so that the closure, can be eflectcd in the fraction of a turn, an

. elastic vessel carried by thesaid lid and capable of expanding to transmit the pressure to the article being compressed, a core secured to the lid so as to leave an annular space between the elastic vessel and its core, pipes and controlling means for supplying pressure fluid to the said annular space, a cross-bar revolubly connected to said lid, tongs pivotally connected to the cross-bar, uprights on which the cross-bar can slide up and down, and counterweighted cables and gearing for raising and lowering the crossbar and its appurtenances.

In witness whereof, I have hereunto signed my name this 11 day of May 1911, in the presence of two subscribing witnesses.

RAMON SENAC. lVitnesses:

Jose M. GAY, J. Lorna ALIENES. 

